Asteroid 7 Iris
Asteroid 7 Iris is in the constellation of
Taurus,
at a distance of
Finder Charts
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High precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 7 Iris is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Asteroid 7 Iris?, a page that provides all the information needed to find Asteroid 7 Iris in the sky and additional links to sky charts.
Celestial Coordinates
Apparent
J2000
Additional Information
Rise and Set Times
Today's rise, transit and set times of Asteroid 7 Iris from Ibiza, Spain (all times relative to the local timezone Europe/Madrid):
- 7 Iris is above the horizon from Ibiza, Spain.
- Right now it is placed in the East-South-East direction at an altitude of 52.07° above the horizon.
- Given its current magnitude, 7 Iris is visible with the help of a binocular with a 50mm aperture, easy with a small telescope.
- Go to interactive sky chart
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Distance from Earth
The distance of Asteroid 7 Iris from Earth is currently
The following chart shows the distance of Asteroid 7 Iris from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 7 Iris from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 1900 and 31 December 2099, the closest approach of Asteroid 7 Iris to Earth happens on Sat Nov 8 1947 at a distance of 0.846460 Astronomical Units, or 126,628,540 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 7 Iris, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.
Orbital Elements
The following table lists the orbital elements of Asteroid 7 Iris at epoch 24 February 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.22965976 |
| Orbit inclination | i | 5.51780097° |
| Perihelion distance | q | 1.83876388 AU 275,075,162 km |
| Aphelion distance | Q |
2.93513675 AU 439,090,209 km |
| Semi-major axis | a |
2.38695031 AU 357,082,685 km |
| Orbital period | period |
3.6879 years 1,346.9873 days |
| Date of perihelion transit | Tp | 2021-Jul-26 23:47:00 2,459,422.4910 JD |
| Next perihelion transit | 2025-Apr-03 23:28 2,460,769.4783 JD |
|
| Argument of perihelion | peri | 145.41271894919° |
| Longitude of the ascending node | node | 259.50440351462° |
| Mean anomaly | M | 154.48048287592° |
| Mean motion | n | 0.26726310°/day |
View Asteroid 7 Iris in the 3D Solar System Simulator
Physical Data
The following shows the known values of the most important physical parameters of Asteroid 7 Iris. Source: JPL Small-Body Database
| Physical Parameter | Value | Relative to Earth |
|---|---|---|
| Diameter | 199.83 km | 0.0157 |
| Sideral Rotation | 7.1390 hours | 0.2983 |
| Absolute Magnitude | 5.51 | |
| Geometric Albedo | 0.2766 |
15 Days Ephemeris
The following table lists the ephemerides of Asteroid 7 Iris computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2025 May 30 | 04h 30m 19s | +22° 28’ 56” | 9.38 | Taurus |
| 2025 May 31 | 04h 32m 57s | +22° 32’ 53” | 9.37 | Taurus |
| 2025 Jun 01 | 04h 35m 34s | +22° 36’ 41” | 9.37 | Taurus |
| 2025 Jun 02 | 04h 38m 12s | +22° 40’ 18” | 9.38 | Taurus |
| 2025 Jun 03 | 04h 40m 50s | +22° 43’ 46” | 9.40 | Taurus |
| 2025 Jun 04 | 04h 43m 28s | +22° 47’ 03” | 9.42 | Taurus |
| 2025 Jun 05 | 04h 46m 06s | +22° 50’ 12” | 9.44 | Taurus |
| 2025 Jun 06 | 04h 48m 44s | +22° 53’ 09” | 9.46 | Taurus |
| 2025 Jun 07 | 04h 51m 23s | +22° 55’ 57” | 9.48 | Taurus |
| 2025 Jun 08 | 04h 54m 00s | +22° 58’ 37” | 9.50 | Taurus |
| 2025 Jun 09 | 04h 56m 38s | +23° 01’ 05” | 9.52 | Taurus |
| 2025 Jun 10 | 04h 59m 16s | +23° 03’ 25” | 9.53 | Taurus |
| 2025 Jun 11 | 05h 01m 53s | +23° 05’ 33” | 9.55 | Taurus |
| 2025 Jun 12 | 05h 04m 31s | +23° 07’ 32” | 9.57 | Taurus |
Additional Resources on TheSkyLive
- Asteroid 7 Iris: Complete reference information on TheSkyLive.com.
- Where is Asteroid 7 Iris?: Key information on locating Asteroid 7 Iris in the sky.
- Distance from Earth: Find out how far Asteroid 7 Iris is from Earth right now.
- How Bright is Asteroid 7 Iris?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Asteroid 7 Iris's rise and set times from your location.
- Interactive Sky Map: planetarium-style interactive visualization of Asteroid 7 Iris's position in the sky.
- Live Position Tracker: high precision position tracker with deep space imagery.
- Ephemeris: 15 days Asteroid 7 Iris's computed ephemeris.
- Orbital elements: information about Asteroid 7 Iris orbital parameters.
- Orbit Visualization. 3d interactive visualization showing the orbit of Asteroid 7 Iris with respect to the major Solar System objects.
- Physical Data. Detailed information about physical properties of Asteroid 7 Iris, such as mass and geometric properties.